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Smallpdf
Online PDF tools suite
PDF ToolsFreemiumNo LoginFeatured
★★★★★
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When2meet
Group availability finder
SchedulingFreeNo Login
★★★★★
—E
Etherscan
Ethereum block explorer
Crypto ToolsFreeOptional Login
★★★★★
—C
CronTab Guru
Cron schedule expression editor
ParsersFreeNo Login
★★★★★
—W
WHOIS Lookup
Domain registration lookup
CheckersFreeNo Login
★★★★★
—D
Down For Everyone Or Just Me
Website status checker
CheckersFreeNo Login
★★★★★
—W
W3C Markup Validator
HTML markup validation service
ValidatorsFreeNo Login
★★★★★
—E
Email Validator
Validate email addresses
ValidatorsFreeNo Login
★★★★★
—C
Charles Proxy
HTTP proxy and monitor
ParsersPaidNo Login
★★★★★
—U
UnitConverters.net
Unit conversion tool
ConvertersFreeNo Login
★★★★★
—F
Fiddler
Web debugging proxy
ParsersFreemiumNo Login
★★★★★
—W
Wireshark
Network protocol analyzer
ParsersFreeNo Login
★★★★★
—O
Omni Calculator
Online calculators for everything
CalculatorsFreeNo Login
★★★★★
—V
VirusTotal
Analyze suspicious files and URLs
Malware CheckersFreeOptional Login
★★★★★
—A
Auphonic
Automatic audio post-production
Audio ConvertersFreemiumLogin Required
★★★★★
—7
7-Zip
File archiver with high compression
CompressionFreeNo Login
★★★★★
—G
Google Translate
Free language translation
ConvertersFreeOptional Login
★★★★★
—O
Online-Convert
Convert files online
Image ConvertersFreemiumNo Login
★★★★★
—Z
Zamzar
Online file conversion
Image ConvertersFreemiumNo Login
★★★★★
—S
Sejda
Online PDF tools
PDF ToolsFreemiumNo Login
★★★★★
—P
Porkbun
Affordable domain registrar
CheckersPaidLogin Required
★★★★★
—G
GoDaddy
Domains and small business tools
CheckersPaidLogin Required
★★★★★
—C
Cloudflare Registrar
At-cost domain registration
CheckersPaidLogin Required
★★★★★
—N
Namecheap
Domain registrar and hosting
CheckersPaidLogin Required
★★★★★
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